As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, NR 2 THRUST REVERSER LIGHT WAS BLINKING. THE CREW ACTUATED THE EMERGENCY STOW PUMP BUT NO HELP. THEY RETURNED TO DEPARTURE AND UPON LANDING THE LIGHT WENT OUT. MX TROUBLESHOT THE THRUST REVERSER SYS AND FOUND RT UPPER AND LOWER THRUST REVERSER LOCKING SENSORS BAD. THEY REPLACED BOTH LOCKING SENSORS. OPS CHECK GOOD IAW MM 78-35-1. ACFT WAS RETURNED TO SERVICE.